Epoch / Unix Timestamp Converter

About the Epoch / Unix Timestamp Converter

Epoch / Unix Timestamp Converter flips between the seconds-since-1970 format used by databases and APIs and the dates humans read. A must-have for developers debugging log files or API payloads.

How to use

1. To decode a timestamp: paste it and click To date.
2. To encode a date: pick it from the date-picker and click To timestamp.
3. Toggle between seconds and milliseconds in the mode switch.

Benefits & key features

• Supports both seconds (classic Unix) and milliseconds (JavaScript Date.now).
• Displays local time and UTC side-by-side so you never mix time-zones up.
• Live current-epoch readout ticks every second.
• No trackers, making it safe for work-sensitive timestamps.

Pro tip

When debugging an API, always check whether it returns seconds or milliseconds — miss by a factor of 1000 and you'll be debugging the year 51,000.

Why choose toolsfy for Date & Time tools?

Time calculations quietly eat hours of a working week — booking cross-time-zone meetings, figuring out how many business days a document review takes, converting between epoch timestamps and human dates. toolsfy's date-and-time tools replace the dozen tabs, Excel formulas and clunky phone apps you currently juggle with one consistent, keyboard-friendly workspace that works identically on desktop and mobile.

Common use cases

• Project managers estimating a realistic ship date by adding business days (skipping weekends) to today rather than calendar days.
• Remote-team leads converting a Tuesday 3 pm standup into every teammate's local time before sending the invite — and catching daylight-saving gotchas automatically.
• Developers decoding Unix epoch timestamps printed in raw log files into readable dates without leaving the browser.

Frequently asked questions